Re: [PATCH 2/8 v2] acpi-cpufreq: Add quirk to disable _PSD usage on all AMD CPUs

2012-09-17 Thread Thomas Renninger
On Monday, September 17, 2012 09:41:20 AM Andre Przywara wrote: > On 09/15/2012 01:20 PM, Konrad Rzeszutek Wilk wrote: > > ... > This was to overcome some nasty interaction between the Windows > scheduler and their version of the ondemand governor. Whoever is/was responsible for this, can you

Re: [PATCH 2/8 v2] acpi-cpufreq: Add quirk to disable _PSD usage on all AMD CPUs

2012-09-17 Thread Andre Przywara
On 09/15/2012 01:20 PM, Konrad Rzeszutek Wilk wrote: On Sep 4, 2012 4:26 AM, "Andre Przywara" mailto:andre.przyw...@amd.com>> wrote: > > To workaround some Windows specific behavior, the ACPI _PSD table > on AMD desktop boards advertises all cores as dependent, meaning > that they all can

Re: [PATCH 2/8 v2] acpi-cpufreq: Add quirk to disable _PSD usage on all AMD CPUs

2012-09-17 Thread Andre Przywara
On 09/15/2012 01:20 PM, Konrad Rzeszutek Wilk wrote: On Sep 4, 2012 4:26 AM, Andre Przywara andre.przyw...@amd.com mailto:andre.przyw...@amd.com wrote: To workaround some Windows specific behavior, the ACPI _PSD table on AMD desktop boards advertises all cores as dependent, meaning that

Re: [PATCH 2/8 v2] acpi-cpufreq: Add quirk to disable _PSD usage on all AMD CPUs

2012-09-17 Thread Thomas Renninger
On Monday, September 17, 2012 09:41:20 AM Andre Przywara wrote: On 09/15/2012 01:20 PM, Konrad Rzeszutek Wilk wrote: ... This was to overcome some nasty interaction between the Windows scheduler and their version of the ondemand governor. Whoever is/was responsible for this, can you explain

[PATCH 2/8 v2] acpi-cpufreq: Add quirk to disable _PSD usage on all AMD CPUs

2012-09-04 Thread Andre Przywara
To workaround some Windows specific behavior, the ACPI _PSD table on AMD desktop boards advertises all cores as dependent, meaning that they all can only use the same P-state. acpi-cpufreq strictly obeys this description, instantiating one CPU only and symlinking the others. But the hardware can

[PATCH 2/8 v2] acpi-cpufreq: Add quirk to disable _PSD usage on all AMD CPUs

2012-09-04 Thread Andre Przywara
To workaround some Windows specific behavior, the ACPI _PSD table on AMD desktop boards advertises all cores as dependent, meaning that they all can only use the same P-state. acpi-cpufreq strictly obeys this description, instantiating one CPU only and symlinking the others. But the hardware can